
What are 'flocs', formed during secondary of sewage?
- Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment.
- Flocs are essentially groups of bacteria which are in a sludge structure and is held together with the use of slime.
- Flocs are helpful in increasing the decomposition rate and are put in the aeration tank while the...
What are flocs in sewage treatment?
Flocs are essentially groups of bacteria which are in a sludge structure and is held together with the use of slime. Flocs are helpful in increasing the decomposition rate and are put in the aeration tank while the secondary sewage treatment process is in effect.
What are'flocs'formed during secondary of sewage?
[SOLVED] What are 'flocs', formed during secondary of sewage? What are 'flocs', formed during secondary of sewage? Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment. Flocs are essentially groups of bacteria which are in a sludge structure and is held together with the use of slime.
What are the different stages of sewage treatment?
Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment. Flocs are essentially groups of bacteria which are in a sludge structure and is held together with the use of slime.

What is flocs formed during secondary treatment?
Answer : Flocs are the masses of bacteria associated with fungal filaments to form mesh like structures. Explanation: During the secondary treatment of sewage, the primary effluent is passed into the large aeration tanks where it is continuously agitated mechanically and air is pumped into it.
What are the flocs formed during secondary treatment of sewage class 12?
1 Answer. Flocs are essentially groups of bacteria which are in a sludge structure and is held together with the use of slime. Flocs are helpful in increasing the decomposition rate and are put in the aeration tank while the secondary sewage treatment process is in effect.
What are flocs that are formed during treatment of sewage?
Flocs are masses of bacteria embedded in fungal filaments to form a mesh-like structure. These flocs consume organic matter in wastewater and reduce the B.O.D. levels in the water. The flocs form a part of activated sludge, a small part of which is pumped back into aeration tank to help as inoculums.
What are flocs formed during?
Primary Sludge(i)It is sludge formed during primary sewage treatment.(ii)It possesses flocs of decomposer microbes.(iii)It does not require aeration.(iv)A lot of decomposition occurs during formation of primary sludge.
What are flocs with respect to sewage treatment Shaalaa?
Solution. Flocs are the masses of bacteria held together by slime and fungal hyphae to form mesh like masses.
What are flocs write significance in sewage treatment?
Flocs are masses of bacteria associated with fungal filaments to form mesh like structure. Flocs digest most of the organic material from the sludge. Thus, floc helps in reducing the BOD (Biochemical Oxygen Demand) of the effluent. This helps in further treatment of sludge.
How are flocs formed?
- Flocs are fundamentally groups of bacteria which are in a sludge structure and are apprehended together with the use of slime. - Flocs are very helpful in increasing the decomposition rate and are put in the ventilation tank while the secondary sewage treatment process is in effect.
Are flocs formed in aeration tanks?
The primary effluent is now passed into large aeration tanks where the primary effluent is constantly agitated. This agitation allows vigorous growth of aerobic microbes into flocs. Flocs are defined as fungal filaments associated with masses of bacteria to form mesh-like structures.
Where is sedimentation of flocs taking place in sewage process?
In sewage treatment, bacterial flocs are allowed to sediment in a settling tank.